Project Overview: The Complaint System is a web application designed to manage and track complaints. It allows users to register complaints and for administrators to manage and resolve them. The system is built using MongoDB, Express, Node.js, and Handlebars. Features: User authentication and authorization Complaint registration by users Admin panel to manage complaints Assignment of complaints to engineers Email notifications for complaint updates Dashboard for statistics and reports Usage: Register: Users can register an account to log in. Log In: Existing users can log in using their credentials. Register Complaint: After logging in, users can fill out a form to register their complaints. Admin Panel: Admins can log in to view all complaints, assign them to engineers, and update their status.